FROM almalinux:8

RUN useradd -m -s /bin/false vmail

RUN dnf install -y epel-release && dnf update -y \
  && dnf clean all \
  && rm -rf /var/cache/yum

RUN dnf install -y postfix-3.5.8 postfix-ldap-3.5.8 postfix-mysql-3.5.8 postfix-pgsql-3.5.8 \
  dovecot-2.3.16 dovecot-pigeonhole-2.3.16 opendkim-2.11.0 opendmarc-1.4.2 \
  cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5 pypolicyd-spf \
  && dnf clean all \
  && rm -rf /var/cache/yum

#RUN postconf -e inet_interfaces=all

EXPOSE 25 465 587

CMD ["postfix", "start-fg"]